Gluing and pasting machine



Dec. 12, 1933. J. ETTL GLUING AND PASTING MACHINE Filed Dec. 3, 1930 2 Sheets-Sheet l INVENTOR BY ATTORNEYS Dec. 12, 1933. J. ETTL GLUING AND PASTING MACHINE Filed Dec. 5, 1930 2 Sheets-Sheet 2 INVENTOR BY ATTORNEYS- Patented Dec. 12, 1933 UNITED STATES PATENT OFFICE Machine Company, tion of New York Brooklyn, N. Y., a corpora- Application December 3', 1930. 7 Serial No. 499,732

3 Claims.

This invention relates to an improvement in gluing and pasting machines, and has for one of its objects the provision of a construction wherein injury to the machine due to the catching of lumps of paste or other adhesive between the rollers of the machine is eliminated.

A further object of my invention is the provision of improved mechanism for adjusting the ductor roller with reference to the gluing or pasting roller, whereby the amount of adjustment permitted is limited, thereby preventing injury to the machine due to forcing the ductor roller against the gluing roller with excessive pressure.

A further object of my invention is the provision of a driving mechanism which is of improved construction in that the same is selfoiling thereby insuring that the driving mechanism will be lubricated at all times without necessitating the attention of the operator.

A still further object of my invention is the provision of an improved mechanism in connection with the drive for the machine, whereby the gluing roller may be rotated by hand initially to thoroughly coat the same with glue or paste before feeding stock to the machine.

t In the drawings accompanying this applicaion:

Fig; 1 is a plan view of an embodiment of my invention;

Fig. 2 is a part sectional the machine of Fig. 1;

Figs. 3 and 4 are details of the adjustment for the ductor roller; and

Fig. 5 is a detail of certain clutch mechanism employed in the drive for the machine.

Referring to the drawings in detail: 1 desigside elevation of nates thebed of the machine in which the glu ing or pasting roller 2, ductor roller 3 and presser rollers 4 and 5 are mounted. for rotation. One

feature of the invention, as above pointedout, is the provision of improved means for adjusting the ductor roller 3 with respect to the gluing orpasting roller 2 so as to regulate the coating of glue or paste on the roller 2 and hence the coating. 'of paste which is applied to the stock as it passes through the machine.

From an inspection of the drawings it will be seen that the shaft 6 which mounts the ductor roller is carried in floating bearings '7 provided at each side of the machine, whereby the shaft 6 and hence the ductor roller may be adjusted toward and away from the gluing roller.

At the rear of the ductor roller is a rod 8 extending transversely of the machine and other end of which front of the machine is mounted in suitable bearings therein; Each end of this rod 8 is flattened so as toreceive a strap 9. Each strap has downwardly extending arms 10 and 11.

12 and 13 designate adjusting screws which pass through these arms and project therefrom into contact with the bearings '7 for the shaft of the ductor roller.

Below each of the screws 12 and 13, and also passing through the arms 10 and 11 of the strap 9, are two small screws 14. After the desired adjustment of the bearings of the shaft 6 has been effected the screws 14 are set up .to pinch the two arms 10 and 11 together slightly to hold the adjusting screws 12 and 1 3 in adjusted position. i v 1 While this construction provides for adjustment of the ductor roller with respect to the gluing roller so as to regulate to some extent the coating of glue or paste thereon, a much fineradjustment of the ductor roller is obtainable bythe adjusting mechanism now to be described. I

The arm '10 of one of the straps 9 is bent rearwardiy and downwardly as will be seen from an inspection of Fig. 3 to provide a cam 15 and a stop 16. This cam is also provided with a bore 17-,for the reception of an'adjusting shaft 18 which extends lengthwise of the machine toward the front thereof.

the rear face of the "cam 15, this projecting porthe back of the cam 15, the bears against a washer 20 which is onthe shaft 18 and is held by a pin 21. 9

22 designates a cam follower carried by the adjusting shaft, and illustrated as in the nature of a pin carried by the shaft.

The end-of the adjusting shaft 18 adjacent the mounted in a suitable 9 bearing 23 in the machine frame and projects through the bearing sufliciently to receive an adjusting dial 24.. On this end of the shaft and behind the bearing 23 is a spring 25, one end of which engages the face of the bearing and 00 whichbears against the other a washer'26 held against rearward rocking the arm 10 and hence the rod 8 in a 110 This rod projects beyond 44 and is provided with a ing roller 2. This same shaft carries a gear 47 clockwise direction, as viewed in Fig. 3, to move the screws 12 away from the floating bearings 7 for the shaft 6 of the ductor roller is free gluing roller 2.

The amount of movement of the rod 18, or to be more exact the extent of its rotation will, as will be understood, be limited by the stop 16.

On reverse rotation of the rod 18 the rod will be moved longitudinally in the opposite direction, that is, to the right as viewed in Fig. 2, the spring 25 which also was placed under compression on the longitudinal movement of the rod 18 above described causing the rod to move to the right, to effect a rocking of the arm 10 with a corresponding movement of the to move away from the floating bearings 7 of the ductor roller to car so provides a construction in which should the glue or paste become jammed or caught between the ductor roller and the gluing roller the machine will not be damaged. In this connection 30 designates the driving motor for machine, conveniently arranged beneath the front end of the machine. The motor shaft 31 is provided with a worm 32 driving a worm gear 33. This gear 33 is mounted on a shaft 34 which extends longitudinally of the machine and is mounted in suitable bearings in the frame thereof. Pinned or otherwise rigidly secured to this shaft 34 is one member 35 of a coupling. This member, as will be seen from Fig. 5, for instance, is in the form of a disc provided in its face with a plurality of depressions 36.

The shaft 34 projects through the clutch member 35 and is at 37 so as to be telescoped by the hollow end of a drive shaft 38 which is mounted in line with the shaft 34.

Mounted on the drive shaft 38 is a sleeve 39 bored longitudinally as shown at 40 to receive balls 41 adapted under normal conditions to lie in the depressions 36 in the clutch member 35. These balls are heldin their respective depressions by springs 42 provided in the bores 40, the outer ends of these springs abutting screws which are screwed into the outer end of the bores.

The sleeve 39'is rigid with the drive shaft 38, being secured thereto by a set screw 43.-

The drive shaft 38 extends into a gear casing worm 45 engaging a worm gear 46 which is on the shaft of the glumeshing with a gear 48 on the shaft of the ductor roller so that the As above mentioned, the present inventionalthe 7 reduced in diameter as shown ductor roller. The shaft of the gluing roller also carries a spur gear 49 meshing with the gears 50 and 51 on the shafts of the presser rollers 4 and'5 above referred to. By mounting the gear train just described in the gear casing 30 44 and partially filling the casing with oil I find that the train is self-lubricating.

It will be appreciated that in operation the balls 41 establish a suitable driving connection between the shafts 34 and 38. If, however, for any reason too'much load is put on the machine, for example lumps of glue or paste may jam the machine, or an attempt may be made to feed heavier stock to the machine than the machine is designed for, then the springs 40 will yield permitting the shaft 34 and disc 35 to rotate with the sleeve 39 and shaft 38 remaining stationary.

As above mentioned it is desirable to rotate the gluing roller by hand in the initial starting of the machine. To this end the shaft of the gluing roller is provided with a 45 slot 52 for receiving a spring-loaded key 53 by which the worm gear 46 is attached to the shaft. On the E- outer end of the shaft is a handle 54. This provides as will be apparent for rotation of the gluing roller by the handle.

It is to understood that changes may be made in the details of construction and arrange-'3 of herein described within the purview of my invention.

What I claim is:, a

1. In a machine of the class described, the combination of a gluing or pasting roll, a shaft? therefor, a'drive ear thereon, a slot and key no connection for connecting the drive gear to said shaftunder power drive conditions, and a manually operable crank carried by said shaft adapted when operated to move said key connectionf. out of an engagement with said slot to disconmeet the shaftand drive gear to permit driving of said roll by hand independently of the main drive.

2. In a machine of the class described, the combination of a gluing or pasting roll, a cooperating ductor roll, an adjusting armvcooperating with the ductor roll for effecting adjustment of'the same, an adjusting shaft, a cam on said arm, a cam follower carried by said shaft and cooperating With said cam to effect movement of said arm, and a stop on the face of said cam for limiting the rotation of the adjusting shaft JOSEPH ETTL. 

